hook, line and sinker源自钓鱼，鱼钩、鱼线和铅坠，这个表达通常用来侮辱某人的推理能力或智力，fall for hook, line and sinker暗指一条鱼完全接受了鱼饵，以至于把鱼钩、鱼线和铅坠也吞下去了。意思是说，很容易上当，或者什么都相信，说话者认为某人很笨，fall for ...

Fall for someone 的含义和 fall in love with someone 相似，用来表达对某人产生了感觉、爱意，迷恋上了某人，而且是非常强烈地被这个人吸引住了。 例句 I fell for you the first time I met you. It took a while, but they finally fell for each other after ...